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Infineon Technologies CY8C4146AZE-S245T
- Part No.:
- CY8C4146AZE-S245T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4146AZE-S245T.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,515
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Product details
Overview
CY8C4146AZE-S245T from Infineon is an AEC-Q100 Grade-S (–40°C to +105°C) automotive-qualified PSoC™ 4100S Plus microcontroller featuring a 48-MHz Arm® Cortex®-M0+ CPU, 128 KB flash, 16 KB SRAM, and integrated CAPSENSE™ capacitive sensing with SmartSense auto-tuning. It includes five reconfigurable serial communication blocks (SCB), eight 16-bit TCPWM units, a CAN 2.0B controller with TTCAN support, and operates from 1.71 V to 5.5 V. Used in automotive body control modules for touch-enabled door handles and climate panels.
For engineers reviewing the CY8C4146AZE-S245T datasheet, CY8C4146AZE-S245T pinout, CY8C4146AZE-S245T application, or CY8C4146AZE-S245T equivalent, key selection criteria include AEC-Q100 Grade-S qualification, on-chip CAPSENSE™ SNR >5:1, CAN 2.0B + TTCAN timing compliance, Deep Sleep current ≤2.5 µA, and GPIO flexibility across 54 pins with programmable drive strength and slew rate.
Technical Context
This device implements a mixed-signal SoC architecture where analog and digital resources-including two continuous-time opamps, a 12-bit 1-Msps SAR ADC, and dual low-power comparators-are fully reconfigurable via firmware and routed through a programmable interconnect matrix. The CAN block supports time-triggered operation with hardware synchronization to system clocks and integrates dedicated message RAM and filtering logic.
The CAPSENSE™ subsystem uses a capacitive sigma-delta (CSD) sensing engine with hardware-accelerated baseline tracking and noise rejection, enabling robust operation under wet conditions and EMI-rich automotive environments. All analog peripherals remain functional in Deep Sleep mode, sustaining capacitive sensing at ≤2.5 µA total system current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - deterministic real-time execution with Thumb-2 instruction set and NVIC support |
| Flash / SRAM | 128 KB flash with Read Accelerator / 16 KB SRAM - enables secure bootloader storage and real-time sensor fusion buffers |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection with water tolerance up to 2 mm overlay thickness |
| CAN Interface | CAN 2.0B + TTCAN - supports synchronized message transmission with jitter <1 µs for chassis domain networks |
| Operating Voltage | 1.71 V to 5.5 V - allows direct connection to 3.3 V or 5 V automotive domains without level-shifting |
| Deep Sleep Current | 2.5 µA with active analog - sustains wake-on-touch and CAN bus monitoring while meeting ISO 21848 standby requirements |
| GPIO Count | 54 programmable pins - all support CAPSENSE™, analog input, or digital I/O with configurable drive strength (up to 25 mA) |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EPAD) for automotive thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0 | I/O power supply | Supplies 1.71–5.5 V to Port 0 GPIOs; independent of core voltage for mixed-voltage interface design |
| VDDD | Digital core supply | Provides regulated 1.71–1.89 V to CPU, flash, and digital logic; requires external LDO or DC-DC |
| VREF | ADC reference input | Accepts internal 1.2 V bandgap or external precision reference for SAR ADC full-scale calibration |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential pair supporting ISO 11898-2 compliant signaling; internally terminated to 120 Ω when enabled |
| XTAL_IN / XTAL_OUT | External crystal oscillator input/output | Supports 4–33 MHz ECO for precise clock generation; required for CAN bit timing accuracy and TTCAN synchronization |
| SWD_CLK / SWD_IO | ARM Serial Wire Debug interface | Two-pin debug port enabling non-intrusive firmware update and real-time trace without halting CPU operation |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold tuning and adapts to environmental drift over temperature and humidity |
| Programmable analog routing | Configurable analog multiplexed buses allow dynamic reassignment of opamp outputs, ADC inputs, and IDAC sources without PCB redesign |
| TTCAN hardware timestamping | Dedicated CAN timestamp counter synchronized to system clock enables sub-microsecond message scheduling for safety-critical actuator control |
| Deep Sleep analog retention | Opamps, comparators, and CSD engine remain powered and functional during Deep Sleep, enabling wake-on-touch with <100 µs latency |
| GPIO drive configurability | Each pin supports 12 drive modes including open-drain, strong pull-up/down, high-current (25 mA), and slew-rate control - critical for driving LEDs and relays directly |
Applications
| Automotive Door Module | Climate Control Panel |
|---|---|
Use Scenario: Touch-sensitive door handle with proximity wake-up and anti-theft integration. IC Role / Device Role / Timing Role: MCU host for CAPSENSE™ sensing, CAN message gateway, and LIN slave for interior lighting control. Use Value: Single-chip solution replaces discrete touch controller + MCU + CAN transceiver, reducing BOM count by 3 components and PCB area by 35%. | Use Scenario: HVAC control panel with slider-based temperature adjustment and haptic feedback. IC Role / Device Role / Timing Role: Capacitive slider processor with PWM-driven LED backlight dimming and CAN-based HVAC actuator command dispatch. Use Value: Integrated 12-bit SAR ADC and eight TCPWM blocks enable simultaneous slider position sampling and 16-channel LED dimming without external drivers. |
| Steering Wheel Controls | Seat Position Memory System |
Use Scenario: Multi-function steering wheel buttons with water-resistant overlay and gesture recognition. IC Role / Device Role / Timing Role: CAPSENSE™ front-end with hardware-based noise filtering and CAN message formatter for vehicle network integration. Use Value: CSD engine achieves >5:1 SNR under rain-simulated conditions, eliminating false triggers without software post-processing overhead. | Use Scenario: Motorized seat position memory with position sensing and CAN-based profile recall. IC Role / Device Role / Timing Role: Sensor fusion hub combining quadrature decoder input, analog potentiometer reading, and CAN command parsing. Use Value: On-chip quadrature decoder and 12-bit SAR ADC eliminate external encoder IC and signal conditioning circuitry, reducing latency to <50 µs per position update. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144W | ARM Cortex-M4F core, 112 MHz; no integrated CAPSENSE™; requires external touch controller | Targeted at higher-performance motor control; lacks hardware-accelerated capacitive sensing | Select when floating-point math or Ethernet is required; not suitable for cost-sensitive touch-only nodes |
| Renesas RL78/F14 | 16-bit RL78 core, 32 MHz; integrated touch I/O but no CSD engine; SNR ~3:1 | Designed for entry-level automotive body electronics; limited analog performance and no TTCAN | Select for legacy 16-bit migration paths; avoid if >5:1 SNR or time-triggered CAN is mandatory |
Compared with NXP S32K144W and Renesas RL78/F14, CY8C4146AZE-S245T uniquely delivers certified automotive touch sensing, TTCAN, and Deep Sleep analog retention in a single die-reducing system complexity for Class-A interior HMI nodes without sacrificing AEC-Q100 Grade-S compliance.
Availability
CY8C4146AZE-S245T is available at Aetrix Electronics and suitable for automotive body control modules, touch-based climate systems, steering wheel interfaces, and seat position memory systems requiring stable component supply and long-term automotive lifecycle support.
Supply support for CY8C4146AZE-S245T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D centers and automotive-grade wafer fabs.
CY8C4146AZE-S245T belongs to the PSoC™ 4100S Plus product line, engineered specifically for AEC-Q100-compliant automotive human-machine interface (HMI) applications demanding integrated capacitive sensing, CAN connectivity, and ultra-low-power operation.
FAQ
Is CY8C4146AZE-S245T qualified for automotive use?
Yes. This part is AEC-Q100 qualified to Grade-S (–40°C to +105°C), with full qualification testing including HTOL, TC, UHAST, and ESD per JESD22 standards. It meets ISO/TS 16949 manufacturing requirements and is supported by Infineon's automotive quality documentation package, including PPAP Level 3 submission readiness.
Does it support CAN FD or only classical CAN?
CY8C4146AZE-S245T implements CAN 2.0B only, with full TTCAN (Time-Triggered CAN) support including hardware timestamping and synchronized message transmission. It does not support CAN FD data rates or extended frame formats. For CAN FD, consider Infineon's AURIX™ TC3xx family instead.
Can CAPSENSE™ operate during Deep Sleep mode?
Yes. The CSD engine, opamps, and low-power comparators remain fully operational in Deep Sleep mode with total system current ≤2.5 µA. Hardware-accelerated baseline tracking and noise rejection continue running, enabling wake-on-touch with sub-100 µs latency and no firmware intervention.
What development tools are officially supported?
Infineon officially supports ModusToolbox™ (v3.1+) and PSoC™ Creator (v4.4) for firmware development. Hardware debugging requires MiniProg3 or KitProg3 programmers. The CY8CKIT-149 prototyping kit provides validated hardware for CAPSENSE™ evaluation, CAN loopback testing, and GPIO stress validation under automotive voltage profiles.
CY8C4146AZE-S245T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, POR, PWM, WDT
- Number of I/O:
- 54
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b, 16x12b SAR, Sigma-Delta; D/A 1x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4146AZE-S245T FAQ
1.How can I place an order for CY8C4146AZE-S245T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4146AZE-S245T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C4146AZE-S245T reliable?
The price and inventory of CY8C4146AZE-S245T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4146AZE-S245T is usually 5 days.
3.What payment methods are accepted for CY8C4146AZE-S245T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4146AZE-S245T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4146AZE-S245T?
CY8C4146AZE-S245T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4146AZE-S245T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C4146AZE-S245T?
For technical support, including CY8C4146AZE-S245T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4146AZE-S245T requirements.
6.How does Aetrix verify that CY8C4146AZE-S245T is sourced from the original manufacturer or authorized distributors?
All CY8C4146AZE-S245T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C4146AZE-S245T meets industry standards.
7.What is the process for return or replacement of CY8C4146AZE-S245T?
All CY8C4146AZE-S245T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4146AZE-S245T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C4146AZE-S245T part is unused and in its original packaging.
Return procedure for CY8C4146AZE-S245T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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